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I just got the notification for the 2.2 update for my HTC Desire (on O2 in the UK). I downloaded and let the update install. After a couple of reboots it told me it couldn't install as I needed to clean up some memory, which I've now done.

How do I restart the update install? I've tried restarting the phone and going to the phone settings and checking for updates, but it doesn't find any updates and it's still reporting 2.1 installed.


Update: Turns out the update file was on my SD card, but renaming it to update.zip and following Al. E's steps didn't work - I get a file not signed errors ("failed to verify whole-file signature" and "signature verification failed".

I've also since done a hard reset too, and now have open call with HTC second line support. Will update you when they get back to me.

Apparently setting the date to the future would cause the OTA to be detected again, but my date won't stay set to the future (yes, I have turned off network date updates!). I'm now researching how to use a file manager to update from the 2.2 zip file.

Watch this space...


Update 2: Okay, I finally cracked it! First, I downloaded the UK O2 update from HTC's site, then followed Al E's method below to install the update. Job done!!

The URL for the download was http://liveimage.htc.com/. I knew the name of the update file as it was in my sd\download folder.

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Thanks for the update. I'm interested in the ultimate solution. –  Al E. Oct 28 '10 at 19:09
    
No worries :) - I'll get back when I know more... –  Sean Kearon Oct 29 '10 at 0:03
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1 Answer 1

up vote 4 down vote accepted

Settings | About phone | System updates

It should let you know that there's an update available.

If you still have the update.zip file on your SD card, these instructions should do it: http://geekword.net/manually-install-froyo-htc-desire

Step 1: Download the Android 2.2 firmware for the Desire from here.

Step 2: Rename the file update.zip and copy it to your microSD card via USB. [Note: make sure the file is named update.zip and not update.zip.zip.]

Step 3: Power down your Desire.

Step 4: Hold down the “Volume Down” button as you power the phone back on.

Step 5: A screen should appear showing your phone’s system searching for various files. Scroll down to “recovery” and press the “Power” button.

Step 6: When you see the triangle with an exclamation point symbol, press the “Power” and “Volume Up” buttons at the same time.

Step 7: From the menu that appears, select “Apply sdcard:update.zip.”

Step 8: When the screen displays “Install from sdcard complete” select “reboot system now” and wait for the phone to power back up.

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@Al E - nope, tried that and it says I'm up to date! –  Sean Kearon Oct 21 '10 at 14:31
    
Pop the battery out? –  Al E. Oct 21 '10 at 14:33
    
Nope - still won't find the update online. As I downloaded it before, can run it from the phone somehow? –  Sean Kearon Oct 21 '10 at 14:37
    
Perhaps. If you still have the update.zip file on your SD card, these instructions should do it: geekword.net/manually-install-froyo-htc-desire –  Al E. Oct 21 '10 at 14:40
    
Al, that's a great help as I now know the name of the update file. However, unfortunately there's no update* file on my phone :( Guess I'll have to wait until the update gets picked up again then?!?! –  Sean Kearon Oct 21 '10 at 15:07
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